1953- 1995a-794 blind blindheit blindness brothersandsisters child childbirth childdevelopment children childrenwithdisabilities childrenwithvisualdisabilities complications congresses development education exhibitions familienerziehung family familyrelationships fielding general gezichtsstoornissen horsetrainers infant jed kind kinderen language languageacquisition languagedevelopment languagedevelopmentdisorders languagedisorders languagedisordersinchildren lifeskillsguides mainstreamingineducation mentalrepresentationinchildren mexico mexicocity parenting parentsofchildrenwithdisabilities photographyoftheblind popularworks portraits publicpolicy ranchers rehabilitation socialservices spaceperceptioninchildren verballearning visiondisorders visuallyhandicappedchildren welfare ww276l253l1985 ww276l2871981 ww276s426c1977 ww276w287b1994